#canvas {
    background: white;
    width: 50vw;
    height: 50vh;
    position: absolute;
    left: 18%;
    top: 25%;
}

#action-list {
    width: 16%;
    height: calc(100% - 38px);
    background: #242424;
    position: absolute;
    top: 5%;
    left: 0;
}

#menubar {
    width: 100%;
    height: 36px;
    background: #242424;
    position: absolute;
    top: 0;
}

#operation-bar {
    width: 30%;
    height: 95%;
    background: #242424;
    position: absolute;
    top: 5%;
    right: 0;
}

